What to expect?
Slovak opal mines have 17 horizons, 4 of which are flooded, while the deepest spot is almost 70 m below the water level. The flooded tunnels stretch for almost 5 km. There is a main line marked with system arrows, but there are also separate tunnels to explore.
The water temperature is 4-5°C and visibility deteriorates rapidly due to soft sediments on the walls and ceiling. Full cave training, good buoyancy and swimming, personal line marking and awareness are key. We are proud to be the official diving operation/provider in the Slovak opal mines, offering complete diving services.
length of tunnels
deepest spot
flooded horizons
water temperature
Our Offer & Pricing
IMPORTANT: The prices below are for the whole group (2-4 divers). You must be a certified cave or mine diver to perform the dive.
- 2 days
- 2 guided dives (60 - 90 min.)
- 2 - 4 divers
- 3 days
- 3 guided dives (60 - 90 min.)
- 1 guided tour through dry parts of the mine (3 - 5 hours)
- 2 - 4 divers
- 3 days
- 4 guided dives (60 - 90 min.)
- Full opal mine diving experience
- 2 - 4 divers
Frequently Asked Questions
Booking
Opal Divers
Slovak opal mines – Gateway tunnel JOZEF
Návštevnícke centrum – štôlňa Jozef
Červenica 198
GPS: 48.9040705, 21.4593696